The Grand MasterSmeat (courtesy of Scott)'s definitions

Mongolian Chimneysweep

A sexual act performed following anal intercourse, where the person who was being penetrated does a head-stand exposing his/her gaping anus and the penetrator sits atop the penetratee and defecates into their rectum.

The Mongolian Chimneysweep requires some degree of flexibility.

by The Grand MasterSmeat (courtesy of Scott) August 30, 2006